Implemented "ping -s", fixed error messages and argument parsing
This commit is contained in:
Pavel Roskin
parent
0b66577368
commit
0024abcbbc
@ -63,6 +63,8 @@
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* Fixed 'swapon -a' and 'swapoff -a', which were broken.
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* Fixed 'mount -a' so it works as expected.
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* Implemented 'ls -R' (enabled by enabling BB_FEATURE_LS_RECURSIVE)
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* Implemented "ping -s", fixed error messages and argument parsing -
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Pavel Roskin
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* More doc updates
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@ -1250,6 +1250,7 @@ Send ICMP ECHO_REQUEST packets to network hosts.
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Options:
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-c COUNT Send only COUNT pings.
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-s SIZE Send SIZE data bytes in packets (default=56).
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-q Quiet mode, only displays output at start
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and when finished.
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Example:
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@ -1948,4 +1949,4 @@ Enrique Zanardi <ezanardi@ull.es>
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=cut
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# $Id: busybox.pod,v 1.36 2000/06/07 17:28:53 andersen Exp $
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# $Id: busybox.pod,v 1.37 2000/06/07 20:38:15 proski Exp $
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@ -1,6 +1,6 @@
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/* vi: set sw=4 ts=4: */
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/*
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* $Id: ping.c,v 1.15 2000/05/12 19:41:47 erik Exp $
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* $Id: ping.c,v 1.16 2000/06/07 20:38:15 proski Exp $
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* Mini ping implementation for busybox
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*
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* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
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@ -64,6 +64,8 @@
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#define CLR(bit) (A(bit) &= (~B(bit)))
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#define TST(bit) (A(bit) & B(bit))
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static void ping(const char *host);
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/* common routines */
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static int in_cksum(unsigned short *buf, int sz)
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{
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@ -104,7 +106,7 @@ static void noresp(int ign)
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exit(0);
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}
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static int ping(const char *host)
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static void ping(const char *host)
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{
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struct hostent *h;
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struct sockaddr_in pingaddr;
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@ -113,7 +115,7 @@ static int ping(const char *host)
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char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
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if ((pingsock = socket(AF_INET, SOCK_RAW, 1)) < 0) { /* 1 == ICMP */
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perror("ping");
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perror("ping: creating a raw socket");
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exit(1);
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}
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@ -140,7 +142,7 @@ static int ping(const char *host)
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if (c < 0 || c != sizeof(packet)) {
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if (c < 0)
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perror("ping");
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perror("ping: sendto");
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fprintf(stderr, "ping: write incomplete\n");
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exit(1);
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}
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@ -156,7 +158,7 @@ static int ping(const char *host)
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(struct sockaddr *) &from, &fromlen)) < 0) {
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if (errno == EINTR)
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continue;
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perror("ping");
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perror("ping: recvfrom");
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continue;
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}
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if (c >= 76) { /* ip + icmp */
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@ -168,7 +170,7 @@ static int ping(const char *host)
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}
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}
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printf("%s is alive!\n", hostname);
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return (TRUE);
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return;
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}
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extern int ping_main(int argc, char **argv)
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@ -181,13 +183,14 @@ extern int ping_main(int argc, char **argv)
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exit(TRUE);
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}
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#else
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#else /* ! BB_SIMPLE_PING */
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/* full(er) version */
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static const char *ping_usage = "ping [OPTION]... host\n"
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#ifndef BB_FEATURE_TRIVIAL_HELP
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"\nSend ICMP ECHO_REQUEST packets to network hosts.\n\n"
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"Options:\n"
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"\t-c COUNT\tSend only COUNT pings.\n"
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"\t-s SIZE\t\tSend SIZE data bytes in packets (default=56).\n"
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"\t-q\t\tQuiet mode, only displays output at start\n"
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"\t\t\tand when finished.\n"
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#endif
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@ -196,6 +199,7 @@ static const char *ping_usage = "ping [OPTION]... host\n"
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static char *hostname = NULL;
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static struct sockaddr_in pingaddr;
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static int pingsock = -1;
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static int datalen = DEFDATALEN;
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static long ntransmitted = 0, nreceived = 0, nrepeats = 0, pingcount = 0;
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static int myid = 0, options = 0;
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@ -206,8 +210,6 @@ static void sendping(int);
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static void pingstats(int);
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static void unpack(char *, int, struct sockaddr_in *);
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static void ping(char *);
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/**************************************************************************/
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static void pingstats(int ign)
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@ -234,7 +236,7 @@ static void sendping(int ign)
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{
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struct icmp *pkt;
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int i;
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char packet[DEFDATALEN + 8];
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char packet[datalen + 8];
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pkt = (struct icmp *) packet;
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@ -251,13 +253,11 @@ static void sendping(int ign)
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i = sendto(pingsock, packet, sizeof(packet), 0,
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(struct sockaddr *) &pingaddr, sizeof(struct sockaddr_in));
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if (i < 0 || i != sizeof(packet)) {
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if (i < 0)
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perror("ping");
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fprintf(stderr, "ping wrote %d chars; %d expected\n", i,
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fatalError("ping: sendto: %s\n", strerror(errno));
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else if (i != sizeof(packet))
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fatalError("ping wrote %d chars; %d expected\n", i,
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(int)sizeof(packet));
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exit(1);
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}
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signal(SIGALRM, sendping);
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if (pingcount == 0 || ntransmitted < pingcount) { /* schedule next in 1s */
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@ -303,7 +303,7 @@ static void unpack(char *buf, int sz, struct sockaddr_in *from)
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iphdr = (struct iphdr *) buf;
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hlen = iphdr->ihl << 2;
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/* discard if too short */
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if (sz < (DEFDATALEN + ICMP_MINLEN))
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if (sz < (datalen + ICMP_MINLEN))
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return;
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sz -= hlen;
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@ -356,12 +356,12 @@ static void unpack(char *buf, int sz, struct sockaddr_in *from)
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icmppkt->icmp_type, icmp_type_name (icmppkt->icmp_type));
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}
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static void ping(char *host)
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static void ping(const char *host)
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{
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struct protoent *proto;
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struct hostent *h;
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char buf[MAXHOSTNAMELEN];
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char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
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char packet[datalen + MAXIPLEN + MAXICMPLEN];
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int sockopt;
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proto = getprotobyname("icmp");
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@ -372,7 +372,7 @@ static void ping(char *host)
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if (errno == EPERM) {
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fprintf(stderr, "ping: permission denied. (are you root?)\n");
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} else {
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perror("ping");
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perror("ping: creating a raw socket");
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}
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exit(1);
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}
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@ -412,7 +412,7 @@ static void ping(char *host)
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printf("PING %s (%s): %d data bytes\n",
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hostname,
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inet_ntoa(*(struct in_addr *) &pingaddr.sin_addr.s_addr),
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DEFDATALEN);
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datalen);
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signal(SIGINT, pingstats);
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@ -429,7 +429,7 @@ static void ping(char *host)
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(struct sockaddr *) &from, &fromlen)) < 0) {
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if (errno == EINTR)
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continue;
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perror("ping");
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perror("ping: recvfrom");
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continue;
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}
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unpack(packet, c, &from);
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@ -455,10 +455,17 @@ extern int ping_main(int argc, char **argv)
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options |= O_QUIET;
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break;
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case 'c':
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argc--;
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if (--argc <= 0)
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usage(ping_usage);
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argv++;
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pingcount = atoi(*argv);
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break;
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case 's':
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if (--argc <= 0)
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usage(ping_usage);
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argv++;
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datalen = atoi(*argv);
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break;
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default:
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usage(ping_usage);
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}
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@ -472,7 +479,7 @@ extern int ping_main(int argc, char **argv)
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ping(*argv);
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exit(TRUE);
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}
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#endif
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#endif /* ! BB_SIMPLE_PING */
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/*
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* Copyright (c) 1989 The Regents of the University of California.
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53
ping.c
53
ping.c
@ -1,6 +1,6 @@
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/* vi: set sw=4 ts=4: */
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/*
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* $Id: ping.c,v 1.15 2000/05/12 19:41:47 erik Exp $
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* $Id: ping.c,v 1.16 2000/06/07 20:38:15 proski Exp $
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* Mini ping implementation for busybox
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*
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* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
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@ -64,6 +64,8 @@
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#define CLR(bit) (A(bit) &= (~B(bit)))
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#define TST(bit) (A(bit) & B(bit))
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static void ping(const char *host);
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/* common routines */
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static int in_cksum(unsigned short *buf, int sz)
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{
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@ -104,7 +106,7 @@ static void noresp(int ign)
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exit(0);
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}
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static int ping(const char *host)
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static void ping(const char *host)
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{
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struct hostent *h;
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struct sockaddr_in pingaddr;
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@ -113,7 +115,7 @@ static int ping(const char *host)
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char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
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if ((pingsock = socket(AF_INET, SOCK_RAW, 1)) < 0) { /* 1 == ICMP */
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perror("ping");
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perror("ping: creating a raw socket");
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exit(1);
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}
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@ -140,7 +142,7 @@ static int ping(const char *host)
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if (c < 0 || c != sizeof(packet)) {
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if (c < 0)
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perror("ping");
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perror("ping: sendto");
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fprintf(stderr, "ping: write incomplete\n");
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exit(1);
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}
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@ -156,7 +158,7 @@ static int ping(const char *host)
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(struct sockaddr *) &from, &fromlen)) < 0) {
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if (errno == EINTR)
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continue;
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perror("ping");
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perror("ping: recvfrom");
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continue;
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}
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if (c >= 76) { /* ip + icmp */
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@ -168,7 +170,7 @@ static int ping(const char *host)
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}
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}
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printf("%s is alive!\n", hostname);
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return (TRUE);
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return;
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}
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extern int ping_main(int argc, char **argv)
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@ -181,13 +183,14 @@ extern int ping_main(int argc, char **argv)
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exit(TRUE);
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}
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#else
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#else /* ! BB_SIMPLE_PING */
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/* full(er) version */
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static const char *ping_usage = "ping [OPTION]... host\n"
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#ifndef BB_FEATURE_TRIVIAL_HELP
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"\nSend ICMP ECHO_REQUEST packets to network hosts.\n\n"
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"Options:\n"
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"\t-c COUNT\tSend only COUNT pings.\n"
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"\t-s SIZE\t\tSend SIZE data bytes in packets (default=56).\n"
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"\t-q\t\tQuiet mode, only displays output at start\n"
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"\t\t\tand when finished.\n"
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#endif
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@ -196,6 +199,7 @@ static const char *ping_usage = "ping [OPTION]... host\n"
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static char *hostname = NULL;
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static struct sockaddr_in pingaddr;
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static int pingsock = -1;
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static int datalen = DEFDATALEN;
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static long ntransmitted = 0, nreceived = 0, nrepeats = 0, pingcount = 0;
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static int myid = 0, options = 0;
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@ -206,8 +210,6 @@ static void sendping(int);
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static void pingstats(int);
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static void unpack(char *, int, struct sockaddr_in *);
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static void ping(char *);
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/**************************************************************************/
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static void pingstats(int ign)
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@ -234,7 +236,7 @@ static void sendping(int ign)
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{
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struct icmp *pkt;
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int i;
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char packet[DEFDATALEN + 8];
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char packet[datalen + 8];
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pkt = (struct icmp *) packet;
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@ -251,13 +253,11 @@ static void sendping(int ign)
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i = sendto(pingsock, packet, sizeof(packet), 0,
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(struct sockaddr *) &pingaddr, sizeof(struct sockaddr_in));
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if (i < 0 || i != sizeof(packet)) {
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if (i < 0)
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perror("ping");
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fprintf(stderr, "ping wrote %d chars; %d expected\n", i,
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fatalError("ping: sendto: %s\n", strerror(errno));
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else if (i != sizeof(packet))
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fatalError("ping wrote %d chars; %d expected\n", i,
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(int)sizeof(packet));
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exit(1);
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}
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signal(SIGALRM, sendping);
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if (pingcount == 0 || ntransmitted < pingcount) { /* schedule next in 1s */
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@ -303,7 +303,7 @@ static void unpack(char *buf, int sz, struct sockaddr_in *from)
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iphdr = (struct iphdr *) buf;
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hlen = iphdr->ihl << 2;
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/* discard if too short */
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if (sz < (DEFDATALEN + ICMP_MINLEN))
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if (sz < (datalen + ICMP_MINLEN))
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return;
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sz -= hlen;
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@ -356,12 +356,12 @@ static void unpack(char *buf, int sz, struct sockaddr_in *from)
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icmppkt->icmp_type, icmp_type_name (icmppkt->icmp_type));
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}
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static void ping(char *host)
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static void ping(const char *host)
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{
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struct protoent *proto;
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struct hostent *h;
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char buf[MAXHOSTNAMELEN];
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char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
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char packet[datalen + MAXIPLEN + MAXICMPLEN];
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int sockopt;
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proto = getprotobyname("icmp");
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@ -372,7 +372,7 @@ static void ping(char *host)
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if (errno == EPERM) {
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fprintf(stderr, "ping: permission denied. (are you root?)\n");
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} else {
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perror("ping");
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perror("ping: creating a raw socket");
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}
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exit(1);
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}
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@ -412,7 +412,7 @@ static void ping(char *host)
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printf("PING %s (%s): %d data bytes\n",
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hostname,
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inet_ntoa(*(struct in_addr *) &pingaddr.sin_addr.s_addr),
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DEFDATALEN);
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datalen);
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signal(SIGINT, pingstats);
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@ -429,7 +429,7 @@ static void ping(char *host)
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(struct sockaddr *) &from, &fromlen)) < 0) {
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if (errno == EINTR)
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continue;
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perror("ping");
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perror("ping: recvfrom");
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continue;
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}
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unpack(packet, c, &from);
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@ -455,10 +455,17 @@ extern int ping_main(int argc, char **argv)
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options |= O_QUIET;
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break;
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case 'c':
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argc--;
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if (--argc <= 0)
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usage(ping_usage);
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argv++;
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pingcount = atoi(*argv);
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break;
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case 's':
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if (--argc <= 0)
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usage(ping_usage);
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argv++;
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datalen = atoi(*argv);
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break;
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default:
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usage(ping_usage);
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}
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@ -472,7 +479,7 @@ extern int ping_main(int argc, char **argv)
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ping(*argv);
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exit(TRUE);
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}
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#endif
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#endif /* ! BB_SIMPLE_PING */
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/*
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* Copyright (c) 1989 The Regents of the University of California.
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